Detect escape key press with jQuery

Detect escape key press with jQuery

HTML

<b>Detect escape key press with jQuery</b><br><br>

Click on result window and then try

JavaScript

/*document.onkeydown = function(evt) {
    evt = evt || window.event;
    if (evt.keyCode == 27) {
        alert('Esc key pressed.');
    }
};*/

$(document).on('keyup',function(evt) {
    if (evt.keyCode == 27) {
       alert('Esc key pressed.');
    }
});